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MGMAT-addition

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by uptowngirl92 » Thu Oct 22, 2009 11:57 pm
2 2
a 3
4 b
9 0 (This is an addition)

If a and b represent positive single digits in the correctly worked computation above, what is the value of the two digit integer ba?

a) 10
b) 15
c) 25
d) 51
e) 52


.............................
I got the correct values of B=5 and a=2.But missed this question as I couldnt make out whether they wanted the nos. just to be placed near each other or multiplied.Morovr..BOTH options result in a two digit integer.I chose A :shock:

Could somebody please clarify the wording of the question so that I don't do such a goof-up on the exam?!
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Source: — Problem Solving |

Re: MGMAT-addition

by uttam.albela » Fri Oct 23, 2009 4:48 am
uptowngirl92 wrote:2 2
a 3
4 b
9 0 (This is an addition)

If a and b represent positive single digits in the correctly worked computation above, what is the value of the two digit integer ba?

a) 10
b) 15
c) 25
d) 51
e) 52


.............................
I got the correct values of B=5 and a=2.But missed this question as I couldnt make out whether they wanted the nos. just to be placed near each other or multiplied.Morovr..BOTH options result in a two digit integer.I chose A :shock:

Could somebody please clarify the wording of the question so that I don't do such a goof-up on the exam?!
the question is asking for value of 2 digit integer ba. This integer ba has two digits b at tens place and a at unit place. So the value of two digit integer is b*10 + a*1

Hope this makes sense :)
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by xcusemeplz2009 » Fri Oct 23, 2009 5:46 am
as far as i know gmat follows a standard rule ,

as per rule ba can not be assumed as b*a un less mentioned.

I guess GMAT will use the symbol or product word for any such operation.

so it has to be 52
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